contrib/llvm/tools/lldb/source/Host/common/NativeThreadProtocol.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

//===-- NativeThreadProtocol.cpp --------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "lldb/Host/common/NativeThreadProtocol.h"

#include "lldb/Host/common/NativeProcessProtocol.h"
#include "lldb/Host/common/NativeRegisterContext.h"
#include "lldb/Host/common/SoftwareBreakpoint.h"

using namespace lldb;
using namespace lldb_private;

NativeThreadProtocol::NativeThreadProtocol(NativeProcessProtocol &process,
                                           lldb::tid_t tid)
    : m_process(process), m_tid(tid) {}

Status NativeThreadProtocol::ReadRegister(uint32_t reg,
                                          RegisterValue &reg_value) {
  NativeRegisterContextSP register_context_sp = GetRegisterContext();
  if (!register_context_sp)
    return Status("no register context");

  const RegisterInfo *const reg_info =
      register_context_sp->GetRegisterInfoAtIndex(reg);
  if (!reg_info)
    return Status("no register info for reg num %" PRIu32, reg);

  return register_context_sp->ReadRegister(reg_info, reg_value);
  ;
}

Status NativeThreadProtocol::WriteRegister(uint32_t reg,
                                           const RegisterValue &reg_value) {
  NativeRegisterContextSP register_context_sp = GetRegisterContext();
  if (!register_context_sp)
    return Status("no register context");

  const RegisterInfo *const reg_info =
      register_context_sp->GetRegisterInfoAtIndex(reg);
  if (!reg_info)
    return Status("no register info for reg num %" PRIu32, reg);

  return register_context_sp->WriteRegister(reg_info, reg_value);
}

Status NativeThreadProtocol::SaveAllRegisters(lldb::DataBufferSP &data_sp) {
  NativeRegisterContextSP register_context_sp = GetRegisterContext();
  if (!register_context_sp)
    return Status("no register context");
  return register_context_sp->WriteAllRegisterValues(data_sp);
}

Status NativeThreadProtocol::RestoreAllRegisters(lldb::DataBufferSP &data_sp) {
  NativeRegisterContextSP register_context_sp = GetRegisterContext();
  if (!register_context_sp)
    return Status("no register context");
  return register_context_sp->ReadAllRegisterValues(data_sp);
}